2015 50c UNC Gold Plated Anniversary Coin

[interest]

But one must buy it to maintain ones complete 50c coin collection.........!

I believe there might be two!! One has
OPEN DAY 21st February 2015 on the end of the card which was available on the day, & another one without this which is being sold now.
packyboxitis?
I do not have confirmation of this as yet, just been told.
Wait & see.